EFFICIENCY BY CONTACT: acts on parasites even before they sting/bite your pet, avoiding pain, discomfort and stress. LONG-LASTING ANTIPARASITIC COLLAR: protects your cat against fleas for 7 to 8 months and up to 8 months against ticks. UNIQUE TECHNOLOGY: The collar gradually releases active ingredients throughout the duration of the treatment and provides homogeneous protection of the head and up to your cat’s tail Long-lasting pest control collar,There are two collars in each package Pest influence A large number fleas breed in the cat’s body and feed on its blood, which will cause the cat to experience anemia symptoms after a long time. In severe cases, cats suffer from dermatitis and other diseases, red patches appear on the surface of the skin, and sometimes there will be symptoms of hair loss, and the consequences are very serious. Fleas not only affect the health of pet cats, but also seriously threaten the health of cohabiting owners. For the pet cat, the owner should